Table 1 IC ₅₀ of methanolic extract of S. petiolata against different cancer cell lines determined by MTT assay.

Cell line	IC50 (μg/ml)
Human lung cancer cell line A-549	75
Human prostate cancer cell line PC-3	125
Human breast cancer cell line MCF-7	75
Human gastric cancer cell line SNU-5	64
Human pancreas cancer cell line MiaPaca-2	75
Human normal cell line fR2	250